MANKATO, Minn. -- With four days remaining until the 2011 league year begins and the salary cap kicks in, the Minnesota Vikings are in the process of negotiating a deal to lower one of their three largest cap numbers and have put out word they'll address another.

Linebacker Chad Greenway and coach Leslie Frazier separately confirmed on Sunday the Vikings continue to work on a long-term extension for Greenway, who otherwise would play the season under the franchise tag for about $10.1 million.

"From our side, we're working through it," Greenway said shortly after reporting to Gage Hall for training camp at Minnesota State University, Mankato.

"We're ready and willing and waiting. Obviously, I'm here and I'm ready to practice and get this thing going."

Frazier also said the Vikings have broached the subject of an extension with the representatives for All-Pro halfback Adrian Peterson, who is due $10.72 million in the last year of his rookie deal and has a team-high cap number of $12.775 million.

"We are in the process of trying to negotiate a long-term deal with Chad, and hopefully, that's going to get done," Frazier said. "Adrian is a major part, as we've talked about many times, of our future. So, we're going to eventually get to that point where we want to talk to he and his agent about a long-term deal as well."

Peterson, 26, did not report to the dormitory during the time players were available to the media on Sunday. But he was spotted shortly after arriving in a white Cadillac Escalade, then getting on a golf cart and hustling to a 4 p.m. team meeting.

Renegotiating one or both deals by Thursday could be critical for the Vikings, who saved $8 million in cap space by cutting safety Madieu Williams and defensive tackle Jimmy Kennedy last week but are believed to remain over the limit, pending the finalization deals with several free agents.

Frazier, who told reporters last week Peterson had promised to report on time, said he hasn't spoken directly to Peterson about his contract. However, the Vikings have "already broached his group about what we want to do, and we'll continue doing that as time goes on."

He added, "We've made it clear that we want to be able to do something long-term for Adrian. There is not any wondering about what the Vikings' stance is. It's just a matter of getting together and getting it done."

Greenway, 28, has said repeatedly he likes Minnesota and wants to stay put. He's also said he's content playing under the franchise tag if a contract can't be worked out.

"When I got franchised, I was humbled by that," Greenway said. "I thought it was a good thing and they put me in a position where I didn't have to worry about if this free agency thing was going to happen and the lockout and all that.

"We sit here now and hopefully, we're going to work out a long-term deal. Obviously, (without) that, I play a one-year deal and be in the same position next year. So, we'll see what happens."